Using a ANOVA, A) What is the SStrt for the ANOVA? Give your answer to at least three decimal places. B) What is DFerr for the ANOVA? C) Using a 0.05 level of significance, what conclusion should the researcher reach? a. fertilizer1 has a higher mean growth for the plant than the other types of soil. b. fertilizer 3 has a lower mean growth for the plant than the other types of soil. c. The mean growth of the plant is not the same for all fertilizer types.
A researcher wants to determine the impact of fertilizer type on the growth of a certain type of plant. She grows three plants in each of four different types of fertilizer and measures the growth in inches for each plant. the data is below:
| Inches | fertilizer |
| 12.5 | 1 |
| 12.6 | 1 |
| 10.8 | 1 |
| 13 | 2 |
| 12.7 | 2 |
| 12.8 | 2 |
| 10.1 | 3 |
| 9.7 | 3 |
| 8.5 | 3 |
| 13.2 | 4 |
| 11.1 | 4 |
| 12.6 |
4 |
Using a ANOVA,
A) What is the SStrt for the ANOVA? Give your answer to at least three decimal places.
B) What is DFerr for the ANOVA?
C) Using a 0.05 level of significance, what conclusion should the researcher reach?
a. fertilizer1 has a higher mean growth for the plant than the other types of soil.
b. fertilizer 3 has a lower mean growth for the plant than the other types of soil.
c. The mean growth of the plant is not the same for all fertilizer types.
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